Chock



FIG. 1 is a perspective view of the chock showing the rear and left side thereof;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a front elevational view thereof; and

FIG. 7 is a bottom plan view thereof. 

The ornamental design for a chock, as shown. 